Friendsactress Lisa Kudrow is back on television after her failed (but critically beloved) show The Comeback, as she produces the NBC show Who Do You Think You Are.The program has celebrities retracing their roots, and Kudrow was a subject of one of the episodes, which was the season’s most emotional installment).The actress, who also stars with Jeff Daniels in the indie film Paper Man(opening in select theaters Friday), elaborates on the reaction she’s received from viewers.Who Do You Think You Are, which airs Friday nights on NBC at 8 pm et/pt, has been renewed for a second season. (CLICK ON THE MEDIA BAR BELOW TO HEAR LISA KUDROW)